tan Θ= sinΘ/cosΘ; cot Θ=cosΘ/sinΘ

Pythagorean Identities

sin^2Θ + cos^2Θ= 1; 1 + tan^2Θ= sec^2Θ; 1 + cot^2Θ= csc^2Θ

Confunction identities

sinΘ= cos(90 degrees-Θ); tanΘ=cot(90 degrees-Θ); secΘ= csc(90 degrees -Θ)

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Quiz 1

Pre cal

Term	Definition
2π	360 degrees
π	180 degrees
3π/2	270 degrees
π/2	90 degrees
π/3	60 degrees
π/4	45 degrees
π/6	30 degrees
Quotient Identities	tan Θ= sinΘ/cosΘ; cot Θ=cosΘ/sinΘ
Pythagorean Identities	sin^2Θ + cos^2Θ= 1; 1 + tan^2Θ= sec^2Θ; 1 + cot^2Θ= csc^2Θ
Confunction identities	sinΘ= cos(90 degrees-Θ); tanΘ=cot(90 degrees-Θ); secΘ= csc(90 degrees -Θ)